Gilera Runner SP 50cc (2010-2017) Yasuni R Exhaust (Black Silencer)

Sports exhaust system optimized for 70cc cylinders on Piaggio 2-stroke 50cc engines. Developed from the Yasuni Z system and perfectly adapted to 70cc sports to mid-race cylinders. The R model works very well on 50cc engines, but it’s especially great on a 70cc set-up.